Buyisela ubukhulu JPEG

Isibonisi sesimo esivulekile JPEG

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Ukulayisha

Indlela yokuguqula ubukhulu JPEG

1 Layisha phezulu i-JPEG images oyifunayo ukuguqulwa isilinganiso - sebenze kusuka ku-original enkulu onayo endaweni yokukopela okwenze wancipha kabili.

2 Ngenisa ububanzi obufunayo, ubude obufunayo noma iphesenti, futhi ushiye ukuvala isilinganiso sesimo esivulekile ngaphandle kokuthi ufuna ukudlulisa ngokuzimela.

3 Sebenzisa ukuguqula ubukhulu; yonke ihele eqenjini lithathwa kulapho lifuna khona ngesinqumo esifanayo.

4 Layisha phezulu ihele eliguqulwe isilinganiso JPEG, noma ihele lonke lihlanganise njengehele elilodwa.

Buyisela ubukhulu JPEG Imibuzo Evame Ukubuzwa

Yini izilinganiso okufanele ngizibeke njengenjongo?

Uzofana nesiteshi esizohlala kuso. Umdlali wewebhu ogcwele ububanzi angeke afune okungaphezu kuka-1920 pixels ububanzi, isithombe sezinto ezingaphakathi 1200, ithumbnail 400, futhi ukudubula lezi nombolo kuzoba ne-high-DPI screens. Noma yini engaphezu kwalokhu yi-bytes akukho muntu obona.

Ingabe ngigcina isilinganiso sesimo, noma ngicindezele izilinganiso ezifanele?

Zonke ezimbili. Khusela isilinganiso futhi ubukhulu olunye luvela kwezinye, okuwukuthi lokho ofuna njalo. Khusela futhi uthola inani elifanele obhalela, ngezindleko zokuziqinisa — okuwusizo ku-slot eqinile, okungalungile ku-photo.

Ingabe ifomethi yomsuka ithinta imiphumela yokuguqula ubukhulu?

Isebenza. I-JPEG iyi-codec efanayo ne-JPG ngaphansi kwesiqiniseko eside — i-DCT pipeline efana, amathebulethi okulinganisela afana, akukho okushintshayo nge-pixels ngegama lefayela. Lokhu kusho ukuthi ngabe ukuncipha kwehele kuyisimangalo se-pixels noma simangalo sokuphinde ubhale kabusha.

Ingabe kukhona okuthile okukhethekile ku JPEG okufanele ngibhekane nalo?

Yebo — i.jpeg ne.jpg izixhumanisi ziyi-bitstream efanayo, ngakho akukho okuthile lapha okuzosebenza ngokuhlukile ku-.jpg — igama lefayela kuphela elishintshayo. Kufanele ukuhlola ngaphambi kokuguqula ubukhulu behele, ngeke ukwazi ukulivuselela.

Ingabe Buyisela ubukhulu JPEG izonciphisa ukhwalithi ye JPEG images yami?

Umsuka olahlekelwayo usuke umphumela wesikhathi sokungena esingu-1, futhi noma yisiphi isenzo esidinga ukuphinde sikhombise sifaka isithupha. lapho umsebenzi ungakwenziwa khona ngaphandle kokuchofoza i-pixel data sizokwenza lokho endaweni, futhi lapho kungasakwazi khona ukhetha i-quality factor wena ngokwakho ngaphezu kokuthola iphutha eliqinile.

Ingabe ngizosebenzisa Buyisela ubukhulu JPEG ku JPEG images amaningi ngasikhathi sinye?

Yebo. Thola isethulo esigcwele endaweni yokulayisha bese zihamba ngokufanayo nezilungiselelo ezifanayo - lokhu kuyisizathu esiyinhloko sokwenza lokhu kubrowser ngaphezu kwefayela elilodwa ngasikhathi sinye kumhleli. Ama-akhawunti amahhala aqhuba ifayela elilodwa ngasikhathi sinye; i-pass lifts that.

Yini ekwenzeke ku-EXIF nedatha yeprofayili yombala?

Ikhamera EXIF (ISO, i-shutter, i-lens, GPS) neprofayili efakwe ngaphakathi ye-ICC idluliselwa ngokuzenzakalela, ngoba ukushiya iprofayili kwenza umbala ushintshe uma ufaka kabusha. Sebenzisa ukhetho lokufihla ukususa i-metadata ngaphambi kokukhishwa uma uhlela ukushicilela ifayela.

Ingabe Buyisela ubukhulu JPEG ibiza noma yini?

No. Buyisela ubukhulu JPEG ikhululekile ngaphandle kwe-akhawunti, akukho uphawu lwamanzi ku-output futhi akukho mnyango wokubhalisa phambi kokulanda. Ukulayisha kususwa ngokuzenzakalela isikhathi esincane ngemuva komsebenzi ophelile.

Kungani i WebM site i host Buyisela ubukhulu JPEG?

WEBM.to ifakwe endaweni yebhokisi lewebhu evulekile ekhethiwe — VP9 noma AV1 ne-Opus audio, eqoshwe ngokusemthethweni nganoma iyiphi i-browser yamanje futhi edinga noma yikuphi ukufaka, ilayisense noma umdlali. Ividiyo iyisimo lapho izindiza ezijikelezayo ezingeziwe zibuhlungu kakhulu - amafayela akhulu futhi wonke ama-upload abiza amahora angempela. Ukusebenza Buyisela ubukhulu JPEG ku-pipeline efanayo njenge-conversions kusho ukuthi u-upload owodwa ufaka umsebenzi wonke endaweni yokufaka olunye olunye olunye olunye.

Yini okufanele ngiyenze ngemiphumela uma i Buyisela ubukhulu JPEG iqediwe?

Isiguquli kule webhusayithi sihamba ngevidiyo phakathi kweWebM, MP4, MKV, MOV neminye, noma sisusa umsindo wonke, ngaphandle kokufaka omunye. Ukulandelela ngendlela enjalo kubaluleke kakhulu kuvidiyo kunanoma kuphi: ngayinye iphinde ikhodwe yisigaba esisha, ngakho-ke uma kungekhona phakathi komthombo nefayela oshicilela, ibukeka ingcono.

Ingabe Buyisela ubukhulu JPEG lapha ithuluzi elifanayo lezindawo ezifanayo ezisebenza?

Ama-engine ahlukaniswe — i-ffmpeg efana ne-x264, x265 ne-libvpx, abasebenza nabo, ama-limits afanayo. Okushiwo yi-WebM site kubukeka ku-container ne-codec: ukuthi ukuhlanganisa kudlala kuphi, odinga uku-encode futhi ongakwazi ukukopela ngokulula. Kuqala futhi kusuka kuqiniso elinye mayelana nefomethi le site ibizwa ngemuva: WebM yi-VP9 noma AV1 ne-Opus audio, okungukuthi iziphequluli ziyi-decode ngokusemthethweni kodwa okungukuthi amanye ama-desktop editors agcina e-transcode uma kufakwa.

Ngidinga i-akhawunti, futhi yini egcinwa?

Akukho akhawunti, futhi akukho okugcinwa: ividiyo elayishwe phezulu isuswa abasebenzayo ngemuva komsebenzi oqediwe, akukho okuboniswe futhi akukho okuhlobene. Ama-akhawunti amahhala akhona ngembali nenani leqembu, hhayi ukufinyelela.